I think 5 hrs sleep is more than sufficient. I sleep 3-4 hrs max. Generally, I sleep at 4 am and wake up at 7 am and hit on the road for jog at 7.30 am sharp. If your diet and daily schedule is good then 5 hrs sleep is more than sufficient. Just my 2 cents. Cheers

I sleep for about 5 hours wake up check emails(i deal in different timezones) and if theres no disasters then I'll try to get another hour in. Anyone that has kids knows that sleep is a luxury that other people enjoy !

WOW .. Blackhatters sleep very little!! Last night I slept 15 hours! But, i'm a 19 year old student in the summer holidays, so I have an excuse! However, I am always tired no matter how much sleep I have

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